Could not load file or assembly 'Microsoft.Datawarehouse.AS' or one of its dependencies

Hi,

I am getting this error while I use drop down list of any db components to fetch the table name. please suggest me how to resolve this, as this is the 2nd time I am getting the error. When I first got this error, I re-installed VS 2017 and SSDT. after that it started working normally for some time and now I am getting the same error.